Pegging machine



June 21, 1927. y B' P' BOHACEK 1,633,307

PEGGING MACHINE Filed April l2, 1926 `3 sheets-Shoot 1- B. P. BoHAcEk l633,307

PEGGING MACHINE June 21, 1927.

Filed Abril 12, 1926 3 Sheets-Sheet 2 June 21 1927' B. P. BOHACEK PEGGING MACHIN Filed April 12, 1926 3 Sheets-Sheet 3 @W Wwm Patented June 21, 1927.

UNITED STATES time? PATENTv oFFIcE.

BRUNO PAUL BOHAGEK, on,rRANKFoRT-oN-THEMAIN, GERMANY, AssIGNon fr0 MASGHINENFABRIK MoENUs AKTrEN-GEsnLLscnAFT, or rnANKFonT-oN-,THE-

MAIN, GERMANY.

. "PEGGING MACHINE.

Application filed April 12, 1926, Serial No. 101,471, and in GermanyAugust 22, 1924.

This invention relates to Vmachin es for peg- `ing soles toj shoes. and is herein shown as embodied in a machine ofthe typedisclosed in the United States Letters Patent No. 581,066. This type of machine has as its principal parts a horn rotatable about a vertical aXis and adapted to support a shoe with the sole uppermost in an approximately horizontal plane, an awl for piercing the layers of the sole to be connected by the wood'- pegs, a hammer for driving` single pegs'into the holes, and a device for feeding' the shoe after every cycle of operation.v

The main object of this invention is to improve the machine of 'the type above mentioned so as to enable it to drive the pegs in a direction inclined to the direction vof the feed of the shoes. I 1,

` Accordingly, a `feature of the invention consists in the arrangement ofthe awl and hammer obliquely to the direction ofthe feed.

of the shoe. l

A further feature of this invention isfound inthe arrangement of the horn lwhichis so constructed as to be able to yield in a dir ection parallel to the inclination of the awl and hammer. j

Another characteristic of this invention is found inthe means for guiding'the shoe with respect to the awl and hammer so that the driven pegs may be reversely'inclined.

These and other features and advantages of the invention, including certain details of construction and combinations of' part-s. will be fully set 'forth and explained ,inj the following detailed description ofso much' of a machine embodying a preferredform of the invent-ion as is necessary fora complete understanding thereof, Aand will then be clearly dened in the appended claims;

Referring to the drawings: Y f Fig. lis a front elevationipartly'in section and Y Y i Fig. 2 aside elevation of the machine.-

f Fig. v3 isa front elevation ofthe machinehead. i y

` Fig.' 4 is a side elevation ofthe machinehead partly inV section'.h l

, Figs. 5 7' how ,the guiding roll and its adjusting means 'in'.cross-sec'tion, in longitudinal section, and'in plan respectively.

The'standard 1 supports the machine head 2 having mounted thereinfthe rotating driving' shaft 66and the slide54 lateia'llyxmov- 'ableV on the bolts 55,156 'by thefcam 57 'on work operated upon.

the shaftl 66. In 'the slide 54 there moves at the proper time in a-vertical plane, the rail to which is fastened by the screw 51 the feed-member 49, the bar 46 with the awl 4 fastened-thereto by. the clamping plate 47, and

vthe bar 63 with the peg-driver 3 fastened to it by the clamping plate 64. The rail 50 is raised and lowered'by the lever 53 coacting with the cam 52. The awl-barv46 is moved by the cam-operated bell-crank lever 48 jourguided in a bore of the member 62 fastened tothe slide 54. v Y

' As thus far described the machine head is of a well-known constructionf But Vas seen from an inspection of the drawings the pep;- ging-tools i, e. ythe awl 4 yand the driver 3, do-not move Vas hitherto lina vertical direc-r tion. but in an oblique direction.

\ The pressnre-plate 58 is adapted to Vcoopcrate with the tip V60 of 'the head 61 of the horn The horn '5 is rotatable' about a vertical aXis. Y The shank 6 of the horn 5 isac.-

commodated in the sleeve Z provided with two eyes for the pivot-bolts 8. 9. The bolts 8,'9'are'connec`ted Aby the links 10, 11 with the vpivots 12, 13'iournaledin the Aarm 14 screwed to the standard '1. The direction of move--y ment of the peggingtools 3, 4 is vertical'to the links'10, 11, so that the horn can yield 'in this direction.'- The hole'in the middle of the tip of the horn is therefore in alineinent with the direction of the awl or of the'driven peg notwithstanding the varying thickness of the work.

The horn is provided withl a well-known devicefor severingthe pegs. Thesey means are connectedby a ball-joint Oto the actuating bar 15.l The'bar 15 isy on the other hand connected by a ball-joint 71 and' by The peendriver 3 is nected by the links 22, 23 and' by the vertically movable yoke 24 to the treadle 2,5.

. By depressing the treadle 25 the horn. 5

islowered parallel to the direction of movei ment of the pegging tools. The same is the case if the horn lowers during the automatic operation of the machine. The points ofthe pegs to be cut away by the severlng device lie therefore always in themid'dle of the head of the horn and can be easily severed. 'I'he roller 26 for guldlng the shoe is ro`- Y tatably journaled inthe lever 27. Thev lever 27 may be tilted about thehorizontal pivot 29 of the slide 28. The rearward end of the lever '27 is constantly pressed down bythe spring 38. Its lowest position is determined by the stopplate 3l.y The slide 28y is movable on the double-slide 30. rIhe end positions of the slide 28 are determined by the dog '2 40 projecting into the slot 4ly of the doubleroll 26 back into its'normal4 height and the p-egging of the secondrow can bel started. Moreover the slide 30 is carried by* the plate 32 and may be adjusted; relative-ly thereto by means of the lever 33 rotatable about the pivot 37 and Ycarrying a-projection 42 engaging into a notch of the double-slide 30. The positions of the adjusting. lever 33 are determined by the notched stops 34, 35tliemselves adjustably fixed inthe curved slot- 43 by the screws 44, 45. The adjusting lever 33 isl provided withl a locking bolt' 36l moved by the spring-pressed handle39 ofthe lever 33-and abutting against the stop 34 orthe stop- 35. By means'of the lever 33, the-bolt 3.6 and the stops 34, 35 the 4distance of the peg-rows from the sole-edge may beadj usted andthe number of the peg-rows may bemultiplied.

vThe operation ofV the machine is as follows:

Thehorn is depressed by the treadle 25fand tbe shoetobe pegged' is placed: with the sole uppermost on they head 61:' of the horn 5 and with itsfedge adjacent." to` the As thetreadle is released' guiding-roll 26; the horn with the shoe thereon is pressed by the spring 67 against the plate 58. By depressing the treadle 72 the machine vis startedi The feeding-member 49` `lowers and takes hold of the work. The' sole--ismoved out of contact with theplate 58 andthe horn ispartly depressed.: Thenv the awl partly penetrates into the work. AThe member 49 and the awl 4 move to the left (Fig. 3) and eect the feed of the work. After the feed has taken. place, theA member r49 lifts,.and the work is presse'dfanew against the plate 58 by the horn and its strong spring 67. This pressure prevents the work from becoming in any way displaced. The awl pierces now wholly thefworkl and moves back into its upper position. The pressure-meinber 49 and-all parts connected tothe slide 54 then return into their rightehand position (Fig-3'). In this position vkthe driver-3 is exactly in alinement with the pierced? hole, so that the peg can be driven home. The pegging` and feeding repeats until one row of pegs is finished. released and the machine stopped in. order to adjust the guiding roller 26 for the second row-of pegs. After this adjustment' the machine is again. started to continue the operation justf described. The pegs driven into the sole of-the shoe which is held in an approximate horizontal plane are directed obliquely to the right or to the left according to-the backward or forward position 'of the guiding roll 26wit h respecttoftheishoe on. Y Y

the horn. If one row of pegs isdriven to the right and the other row to' the` left then the layers-of' the shoe connected by the' pegs cannot any more be disconnected unless the pegs are destroyed. A I

Having thus described the inventionfwhat is claimedis: Y

1f..v In a pegging machine, thecombination withan awl, adriverandmeansfor feeding the shoe, of a horn rotatable aboutan a-Xis in the plane of movement of the awl, driver and rllhen theltreadle 7,2 is y the feedingA means and atan an'glefwith the direction of the piercing and.` driving. movementsof the' awl and driver respectively. Y

2. In a. pegging machine,the combination with an awl, a driver, and means for feeding theshoe,vof a horn rotatable. aboutl an axis in. the plane of movement'of thev awLdriver and the feeding means and at anangle with Vthe direction of the piercing and ldriving about an axis inthe planeof movement oft-he 5 l awl, driver and? the feeding means and at' an 1 angle with the' direction ofthe piercingV and driving movements of'. the awl and.. driver respectively, means Within the horn for sev'- ering the ends of the driven pegs, means for automatically operating the severing means, and a universal connection between the said operating means and the severing-means allowingthe severing-means to move laterally with the horn.

5. In a pegging-machine, a horn rotatable about an axis vertical to the bottom of the shoe held thereon, means for feeding the shoe, means for clamping the shoe between the horn and a. stationary plate after the feeding means have released the shoe, and an avvl arranged to move obliquely to the shoe-bottom and to penetrate partly into the said bottom before the feed takes place and to pierce fully the said bottom after the feed has been effected and the clamping means have taken hold of the shoe.

6. In a pegging machine, an aWl, a driver, means for feeding the shoe, a horn rotatable about an axis in the plane of movement of the avvl, driver and the feeding means and atan angle With the direction of the piercing and driving movements of the aWl and driver respectively, and means for positioning the shoe with respect to the aWl and driver lso that different rows of pegs of a reverse Obliquity may be obtained.

7 In a pegging-machine, the combination with a horn rotatable about an axis vertical to the bottom of the shoe held thereon, an aWl and driver arranged to move obliquely to the said bottom, and a guide adapted to position the shoe as a Whole before the avvl and driver or behind them.

8. In a pegging-machine, the combination with la horn rotatable about an axis vertical to the bottom of the shoe held thereon, of an avvl and driver arranged to move obliquely to the saidbottom, and a guide-roll for the sole-edge positioned at vvill alternately before the avvl and driver or behind them.

9. In a pegging-machine, the combination with a horn rotatable about an axis vertical to the bottom of the shoe held thereon, of an awl and driver arranged to move obliquely to the said bottom, and a Work-guide pivoted on a horizontal shaft and movable transversely to the axis of the horn.

In testimony whereof I aix my signature.

BRUNO PAUL BOHACEK. 

